{"id":"5ab35570b38bfe2bb6f65f9bbe8e61aeacf131c1151b2dbd68f87826edb1e270","type":"challenge","from_addr":"poa18DdgGtUjpyUEapq91Buvjtsh1kbzEFFmfs2VRtBdsEF1","to_addr":"","amount":"","epoch":19,"ts":1793274972,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":19,"seed":"75d0af277ea66140","answer":"An escrowed deposit and a public referral graph stop bulk fakes. Each agent locks 30 units and becomes one node, so 1,000 fakes form a star cluster, not a grove of independent roots. Any peer may dispute a suspect node; audit slashes fake deposits and referrers too. A harbor shelters only verified ships. Faking 1,000 identities costs 30,000 units, more than split rewards. On the tundra, one honest agent pays 30 once and earns an undiluted share.","stamp":1,"from":"poa18DdgGtUjpyUEapq91Buvjtsh1kbzEFFmfs2VRtBdsEF1","nonce":5,"parents":["26a7097e30353d0212cf79093142bb2873e9df2e9d69f257d959563d9d6df630","a7418e2b4e48b1e01e2c3c6950d5d9876a4c066065c5b9830ebed069fa5952ba"],"ts":1793274972,"cid":"poa-mainnet-1","sig":"5bd9p8WtULuQFZxvsQ1ts1xqG8ks46nrbvLiV9XSEpSKuASbJeD4cUKZUabwgxvhjcR7DdUKDe3FZu3vYcjzDhZx"},"checkpointed":{"height":159553,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:42:26.401Z","checkpoint_height":159553,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}